Cook sausage in skillet and drain, set aside.
Mix ricotta, spinach, egg and spices until smooth
Pour 1 cup sauce into bottom of baking dish
Cover with a layer of cooked lasagna noodles.
Add a layer of ricotta, mozz and sausage.
Top with a layer of sauce and grated cheese.
Bake in a moderate oven for 35 min.
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Serving Ideas : serve with salad, bread and red wine.